add: rcon implementation

cmd/mcgod/main.go

@@ -0,0 +1,92 @@
+package main
+
+import (
+	"context"
+	"log"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"tipsy.codes/charles/mc-god/v2/internal/pkg/rcon"
+)
+
+func main() {
+	// Create a context that will be cancelled on interrupt signals
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	// Set up signal handling for graceful shutdown
+	sigChan := make(chan os.Signal, 1)
+	signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
+	go func() {
+		<-sigChan
+		log.Println("Received interrupt signal, shutting down...")
+		cancel()
+	}()
+
+	// Create RCON client from environment variables
+	log.Println("Connecting to Minecraft server via RCON...")
+	client, err := rcon.NewFromEnv()
+	if err != nil {
+		log.Fatalf("Failed to create RCON client: %v", err)
+	}
+	defer func() {
+		if err := client.Close(); err != nil {
+			log.Printf("Error closing RCON connection: %v", err)
+		}
+	}()
+
+	// Perform a health check
+	log.Println("Performing health check...")
+	if err := client.HealthCheck(); err != nil {
+		log.Fatalf("Health check failed: %v", err)
+	}
+	log.Println("Connected successfully!")
+
+	// Example usage of various RCON functions
+	log.Println("Executing sample commands...")
+
+	// Get server info
+	info, err := client.GetServerInfo()
+	if err != nil {
+		log.Printf("Failed to get server info: %v", err)
+	} else {
+		log.Printf("Server info: %s", info)
+	}
+
+	// Set weather to clear
+	if err := client.SetWeather("clear"); err != nil {
+		log.Printf("Failed to set weather: %v", err)
+	} else {
+		log.Println("Weather set to clear")
+	}
+
+	// Set time to day
+	if err := client.SetTime("day"); err != nil {
+		log.Printf("Failed to set time: %v", err)
+	} else {
+		log.Println("Time set to day")
+	}
+
+	// Set difficulty to normal
+	if err := client.SetDifficulty("normal"); err != nil {
+		log.Printf("Failed to set difficulty: %v", err)
+	} else {
+		log.Println("Difficulty set to normal")
+	}
+
+	// Example of executing a custom command
+	response, err := client.ExecuteWithTimeout("list", 5*time.Second)
+	if err != nil {
+		log.Printf("Failed to execute 'list' command: %v", err)
+	} else {
+		log.Printf("Players list response: %s", response)
+	}
+
+	// Keep the application running until interrupted
+	log.Println("MC God is now running. Press Ctrl+C to stop.")
+	<-ctx.Done()
+
+	log.Println("MC God stopped gracefully.")
+}